Practical tips for decoration how to avoid wall cr

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Cracks of different shapes have appeared on the wall. How did these cracks come into being? What can we do to avoid these annoying cracks? Let's listen to the answers of professionals

causes of wall cracks

there are many causes of wall cracks, but they can be divided into two categories on the whole

one is caused by the structural problems of the building itself. The wall cracks caused by this reason are generally linear and relatively deep. Usually, construction workers will deal with the cracks on the building wall, but they can't ensure that there will be no cracks on the wall in the future

the other is caused by the use of inferior materials or non-standard construction techniques. The wall cracks caused by this situation are generally in the form of cracks, and their depth is slightly shallower than the previous one. In the process of construction, we can avoid the occurrence of such wall cracks to the greatest extent and strangle them in the "cradle" by strictly controlling the quality of building materials and the construction technology

how to avoid cracks

1 Select high-quality materials:

experts suggest that when selecting materials, we must purchase them through formal sales channels, select qualified building materials products, and use them strictly in accordance with the product instructions

2. Reasonable treatment of the original wall

at present, the common practice of decoration companies in the market is: for the decoration of old houses, decoration companies will advise owners to thoroughly eradicate the wall before subsequent construction; For the decoration of the new house, considering that the developer has done a good job in the basic treatment of the wall surface, if the owner has no special requirements, the decoration company generally adopts the method of local treatment, that is, only repair the cracks in the existing basic layer

some insiders also pointed out that in order to prevent wall cracking in the future to the greatest extent, it is best to completely eradicate the original wall of both new and old houses. Because if the building materials used in the original base course of the new house are of poor quality or fake products, it will cause the subsequent coating to be not firmly bonded to the base course, resulting in wall cracks

however, due to the large amount of wall construction and high fees, many owners of new houses are generally unwilling to choose this construction method in order to reduce the decoration expenses, thus increasing the possibility of cracks after the decoration of new houses

3. Strictly control the construction process

the standard steps of rough wall brushing are: brush an interface agent → wall crack treatment → gypsum leveling → paste cloth → scrape 2-3 times of putty → Polish → brush primer → repair and polish → brush two times of finish paint

interface agent is a kind of adhesive, which plays the role of curing and bonding. When applying, you can add a small amount of water according to the instructions of the product manufacturer, but if you add too much water, it will cause cracks on the wall in the future, and in serious cases, the wall will peel or even fall off

in the leveling process, it is not allowed to level at one time, but should be carried out several times. Where there is a large error, it is generally leveled with gypsum first, and then leveled with putty in 2-3 times. If the leveling layer is not firm or the coating is uneven, it is easy to cause cracks in the wall in the future

for non bearing walls, the whole wall must be pasted. Try to choose high-quality wall cloth and white latex, so that the crack prevention effect will be better

4. Pay attention to details:

cracks are easy to occur at the joints of different bases, and special treatment is required during the construction process. For example, if the joint between the wooden frame of the wall cabinet and the wall is not treated, it is easy to produce cracks after the change of seasons. In the construction process, the method of inlaying wood on the face is generally adopted to cover up the possible cracks

in addition, improper repair of the wall after slotting will also lead to cracks on the wall. Theoretically, the cement mortar used to repair the slotting should be the same as the cement ratio of the building wall, which is difficult to achieve in practical operation. Therefore, in construction, generally use 1:3 cement mortar for backfilling, and paste cloth or kraft paper at the slotting to avoid wall cracks caused by cement shrinkage

experts said that if every worker carries out construction in strict accordance with the standard process, the occurrence of wall cracks in the later stage can be avoided to the greatest extent

precautions after construction

sudden changes in temperature and humidity will become the inducement of wall cracking. Therefore, experts suggest that the room should be properly ventilated after decoration. If the room has been in a closed state, the water in the decoration materials cannot volatilize, resulting in higher ambient temperature and humidity in the room. After occupancy, the sudden ventilation will reduce the water in the room rapidly, which is easy to cause dryness and cracking of the wall. Of course, ventilation should not be excessive

maintaining normal indoor temperature and humidity, coupled with high-quality decoration materials and standard construction technology, will avoid cracks as much as possible




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